Product Description
The Humphrey Products 250A31120 is a 3-way, 2-position air-piloted pneumatic directional control valve with single pilot operation and normally open function. This compact inline valve features the classic Humphrey diaphragm poppet principle for reliable shifting and bubble-tight sealing in both actuated and unactuated states.
- 3 ports, 2 positions with single air pilot operation
- Normally open valve function
- 1/4 NPSF main ports, 1/8 NPSF pilot port
- Pressure range: 10-125 PSI
- Flow capacity: 0.83 CFM at 40 PSI
- Operating speed: 600 cycles per minute
- Air piloted operation with recommended pilot pressures of 28, 48, 67, and 86 PSI at valve pressures of 30, 60, 90, and 120 PSI respectively
- Zinc diecast body with brass, stainless steel, and Buna N wetted materials
- Ambient temperature range: -20 to 225 degrees F
- Weight: 8 ounces
- Lubrication and media filtration not required
- Suitable for air and inert gas media
The unbalanced air-spring return design ensures fast cycling and quick exhaust for compact, close-proximity work station mounting. Available at Next Day Fittings for fast industrial delivery.